[surferjoe2007]

For NBE, and for health, the way to go is "low" protein.  

Isn't protein pro-NBE because of amino acids and collagen for connective tissue?

The high sulfur aminos are but they're found more in animal collagen and bone broth.  Certain nuts have a bit.  Muscle meat, not so much.  Other protein you get plenty of.  Even with the correct sources like nuts, broth, collagen powder or MSM, once you get enough extra has no benefit.  Overall land meat, dairy and whey/soy protein powders tend to be nutrient poor foods lacking nutrients necessary for both health and NBE.  You should eat about 2 decks of cards worth of meat each day and it should be all seafood and eggs.